WebView: RegisterNativesImpl() returns bool; don't compare it for >= 0.

WebView: RegisterNativesImpl() returns bool; don't compare it for >= 0.

A recent version of Clang warns about this:

../../android_webview/native/java_browser_view_renderer_helper.cc:133:35: error: comparison of constant 0 with expression of type 'bool' is always true [-Werror,-Wtautological-constant-out-of-range-compare]
  return RegisterNativesImpl(env) >= 0;
         ~~~~~~~~~~~~~~~~~~~~~~~~ ^  ~

BUG=363667
Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=264168

[hans, 2014-04-16 00:59:04]

Please take a look! (And feel free to hit the CQ box for me if it looks good.)

[Torne, 2014-04-16 07:53:25]

Wow, I am shocked that gcc doesn't notice this :)

LGTM.

[Torne, 2014-04-16 07:53:30]

The CQ bit was checked by torne@chromium.org

[commit-bot: I haz the power, 2014-04-16 07:53:46]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/hans@chromium.org/238043003/1

[commit-bot: I haz the power, 2014-04-16 11:27:49]

Change committed as 264168